7928704336 has 80 divisors (see below), whose sum is σ = 18299527168. Its totient is φ = 3256329600.

The previous prime is 7928704249. The next prime is 7928704337. The reversal of 7928704336 is 6334078297.

It is a self number, because there is not a number n which added to its sum of digits gives 7928704336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928704337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346531 + ... + 368701.

Almost surely, 2^7928704336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7928704336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9149763584).

7928704336 is an abundant number, since it is smaller than the sum of its proper divisors (10370822832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7928704336 is a wasteful number, since it uses less digits than its factorization.

7928704336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320 (or 22314 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 7928704336 is about 89043.2722669153. The cubic root of 7928704336 is about 1994.0409572050.

The spelling of 7928704336 in words is "seven billion, nine hundred twenty-eight million, seven hundred four thousand, three hundred thirty-six".